NOTE - I usually use the learning function to create my own codes. However, half the functions show up with an error ("This signal contains a section that IR doesn't know how to analyze"...IR v8.03) with everything highlighted in red. I can't find any help on this error either.

I am using my URC-8910's learning function with the Ceton Echo (WMC Extender). However, half the functions show up with an error ("This signal contains a section that IR doesn't know how to analyze"...IR v8.03) with everything highlighted in red. I can't find any help on this error either.

Learn as many signals as you can into memory, including the digit buttons. Make a note with each signal listing its function. Save this to an IR file and post it in the Diagnosis Area of the File Section. It is much easier to work on a protocol with lots of separate signals. Also, the digit buttons frequently have consecutive OBCs, and that makes deciphering a protocol easier.

I don't know if this would matter, or if the difference is actually real.

I wonder if the learning remote has fresh batteries? The learns which don't decode have missing burst pairs, or grossly wrong durations. Also, Scan2.ir and Scan1.ir have identical E2 contents. Only the note section is different. Anyway, try an existing upgrade. If the upgrade doesn't work, we probably need better learns to find out what is different to the MCE protocol.